Re: Protocol Action: iSCSI to Proposed Standard

["Mallikarjun C." <cbm@rose.hp.com>]

> All the Internet documentation with which I am familiar, as well as the

I think we have a case of overlapping vocabulary from two different domains.

Per SCSI Architecture Model (SAM-2, SAM-3), iSCSI is very clearly
a "SCSI transport protocol" (as opposed to a SCSI application layer protocol).
Parallel SCSI, Fibre Channel etc. are all "SCSI transports" per SCSI conventions.
That is all the critiqued abstract is trying to describe.
--
Mallikarjun

Mallikarjun Chadalapaka
Networked Storage Architecture
Network Storage Solutions
Hewlett-Packard MS 5668 
Roseville CA 95747
cbm@rose.hp.com


----- Original Message ----- 
From: "Bob Braden" <braden@ISI.EDU>
To: <sob@harvard.edu>; <mankin@psg.com>
Cc: <ips@ece.cmu.edu>; <ietf@ietf.org>
Sent: Tuesday, February 11, 2003 3:48 PM
Subject: Re: Protocol Action: iSCSI to Proposed Standard


> 
>   *> 
>   *> The IESG has approved publishing the following Internet-Draft
>   *> as a Proposed Standard:
>   *> 
>   *> o iSCSI <draft-ietf-ips-iscsi-20.txt>
>   *> 
>   *> This document is the product of the IP Storage Working Group.
>   *> 
>   *> The IESG contact persons are Allison Mankin and Scott Bradner.
>   *> 
>   *>  
>   *> Technical Summary
>   *>  
>   *>  The Small Computer Systems Interface (SCSI) is a family of
>   *>  protocols for communicating with I/O devices, especially storage
>   *>  devices. SCSI is a client-server architecture. The SCSI protocol
>   *>  has been mapped over various transports, including Parallel SCSI,
> 
> Transports?
> 
> The Webster's New Collegiate Dictionary defines the noun "transport" as
> "strong and often intensely pleasurable emotion".  ;-)
> 
> All the Internet documentation with which I am familiar, as well as the
> OSI reference model, define a "transport layer", but I don't think you
> are suggesting SCSI over IP, etc.
> 
> Can't we please resist terminology pollution?  In the IETF we call these
> [data] link layers.
> 
> Bob Braden
> 
>   *>  IPI, IEEE-1394 (firewire) and Fibre Channel. These transports are
>   *>  I/O specific and have limited distance capabilities. The iSCSI
>   *>  protocol defined in draft-ietf-ips-iscsi describes a means of
>   *>  transporting of the SCSI packets over TCP/IP, providing for an
>   *>  interoperable solution which can take advantage of existing
>   *>  Internet infrastructure, Internet management facilities and
>   *>  address distance limitations. Mapping over TCP ensures that the
>   *>  high volume storage transfers use congestion control.
>   *> 
>   *>  
>